Unexpected page-not-found error: https://grpc.io/release

URL: https://grpc.io/release
Expected page: I guess a number? :)

Two different documentations pages point to this way of installing GRPC:

git clone -b $(curl -L https://grpc.io/release) https://github.com/grpc/grpc

https://chromium.googlesource.com/external/github.com/grpc/grpc/+/chromium-deps/2016-07-19/examples/cpp/helloworld/README.md
https://medium.com/@andrewvetovitz/grpc-c-introduction-45a66ca9461f

(I know the first seems more institutional). Please restore previous page so those scripts work!

Thanks,